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some printers can detect that the cartridges are refilled based ona barcode or scanning of the cartridges. Does this Cannon have ink tanks or ink cartridges. If it has intakes then the print head needs to be cleaned wth rubbing alcohol and a q-tip. If they are cartridges then it would be good just to buy the original cartidges. As far as the scanning goes this can be a direct connection to the printer going through maintenance. If it continues to not scan then you may need to uninstall the scanner. see if the scanner shows up in your scanners area. if not then it will need to be re-installed.